SimpleW-class {widgetInvoke} | R Documentation |
The SimpleW
is a virtual class used to provide a framework for
representing the type of widget used to display and obtain information
in the widgetInvoke
package. There are currently three
subclasses, providing for radio buttons (RadButtonW
), a drop
down list (DropDownW
) or text entry (TypeInW
)
Objects can be created by calls of the form new("SimpleW", ...)
.
defaultValue
:"character"
: This
is the only slot defined by SimpleW
and represents the
default value of the argument.nItems
:"numeric"
: This is used
by the RadButtonW
and DropDownW
subclasses, and
describes how many objects are to be represented in their widget.itemNames
:"character"
: This is
used by the RadButtonW
and DropDownW
subclasses, and
is a character vector detailing the names of the objects to
display in the widget. The length of itemNames
must match
the value stored in the nItems
slot.returnType
:"character"
: This is
used by the TypeInW
subclass, and specifies the return type
of this argument (e.g. character, numeric, logical).
signature(object = "SimpleW")
: Retrieves the
defaultValue slot.signature(object = "RadButtonW")
: Retrieves
the nItems slot.signature(object = "DropDownW")
: Retrieves
the nItems slot.signature(object = "TypeInW")
: Retrieves the
returnType slot.Jeff Gentry